[freetype2] master e82371bf6: Fix `-Wstrict-prototypes`.

[Werner Lemberg]

branch: master
commit e82371bf6ec2efdf79f9ed2d00e633ba0bbf7830
Author: Sam James <sam@gentoo.org>
Commit: Werner Lemberg <wl@gnu.org>

    Fix `-Wstrict-prototypes`.
    
    * builds/unix/configure.raw: Fix `-Wstrict-prototypes`.
    Clang 16 warns on these and they will be dropped in C23.
    
    * builds/unix/freetype2.m4: Ditto.
    
    Signed-off-by: Sam James <sam@gentoo.org>
---
 builds/unix/configure.raw | 2 +-
 builds/unix/freetype2.m4  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/builds/unix/configure.raw b/builds/unix/configure.raw
index 43a76568c..886d50b6f 100644
--- a/builds/unix/configure.raw
+++ b/builds/unix/configure.raw
@@ -50,7 +50,7 @@ if test ${cross_compiling} = yes; then
 
   AC_MSG_CHECKING([for suffix of native executables])
   rm -f a.* b.* a_out.exe conftest.*
-  echo > conftest.c "int main() { return 0;}"
+  echo > conftest.c "int main(void) { return 0;}"
   ${CC_BUILD} conftest.c || AC_MSG_ERROR([native C compiler is not working])
   rm -f conftest.c
   if test -x a.out -o -x b.out -o -x conftest; then
diff --git a/builds/unix/freetype2.m4 b/builds/unix/freetype2.m4
index 0cafc8e8c..51843f5fa 100644
--- a/builds/unix/freetype2.m4
+++ b/builds/unix/freetype2.m4
@@ -121,7 +121,7 @@ AC_DEFUN([AC_CHECK_FT2],
 #include <stdlib.h>
 
 int
-main()
+main(void)
 {
   FT_Library library;
   FT_Error  error;